CVE-2021-43797 – io.netty:netty-codec-http

Package

Manager: maven
Name: io.netty:netty-codec-http
Vulnerable Version: >=4.0.0 <4.1.71.final

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

EPSS: 0.00147 pctl0.35738

Details

HTTP request smuggling in netty ### Impact Netty currently just skips control chars when these are present at the beginning / end of the header name. We should better fail fast as these are not allowed by the spec and could lead to HTTP request smuggling. Failing to do the validation might cause netty to "sanitize" header names before it forward these to another remote system when used as proxy. This remote system can't see the invalid usage anymore and so not do the validation itself.

Metadata

Created: 2021-12-09T19:09:17Z
Modified: 2023-08-04T20:07:19Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/12/GHSA-wx5j-54mm-rqqq/GHSA-wx5j-54mm-rqqq.json
CWE IDs: ["CWE-444"]
Alternative ID: GHSA-wx5j-54mm-rqqq
Finding: F110
Auto approve: 1